Finding the Fourth Proportional to 109,703.08, 151,390.74 and 59,402.44
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Solution
The fourth proportional to 109,703.08, 151,390.74 and 59,402.44 is: 81,975.63
Step by Step Solution
- Step 1: Write the proportion equation
109,703.08 : 151,390.74 = 59,402.44 : x - Step 2: Convert to fraction form
109,703.08/151,390.74 = 59,402.44/x - Step 3: Cross multiply
109,703.08x = 151,390.74 × 59,402.44 - Step 4: Simplify right side
109,703.08x = 8,992,979,349.41 - Step 5: Solve for x
x = 8,992,979,349.41/109,703.08 - Step 6: Final answer
x = 81,975.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.